Faunal Analysis And Phylogenetic Study Of Clytini In China

Clytini is a big group in Cerambycinae in Cerambycidae, most of them are economic pests in agriculture and forestry. This paper introduces its economic significance and study actuality of the world comprehensively. To fill the vacancy of researching actuality in Clytini, the present paper is a study of the fauna of Clytini in China, and of the phylogenetic relationships of some genera in Clytini , some species in Chlorophorus by cladistic analysis, a new species is also described : Calloides yunnanensis Zhang et Chen sp. nov. The results are as follows:1. 18 genera ,352 species and 25 subspecies of Clytini in China have been reported by 2004. Many new species are to be found for lack of more investigation and collection in many districts in China or researching vacancy. At the same time, distribution records of some species known to us are to be added. This paper is preliminary discuss: 14 genera in palaeoarctic realm, 17 genera in oriental realm. According to faunal element analysis, there are 4 genera in northern part, 10 genera in southern part and 4 genera which are intervenient, accounting for 22.22% 55.55% and 22.22% of the total. So genus in oriental realm is more than that in palaeoarctic realm .There are 263 species and 21 subspecies in oriental realm and 99 species and 3 subspecies in palaeoarctic realm .The southern part of fauna is prominent whether in genera quantity or in content; southern part accounts for two-part prominently of 352 species and 25 subspecies in China in species structure . Near the north latitude 32°-34° is east dividing line of oriental realm and palaeoarctic realm according to geographic partition of creature in China, while maybe north latitude 32°-36° is reasonable for Clytini. True transitional zone range awaits more study of faunal parts' penetrating extent, unconspicuous faunal part and of more groups' penetrating borderline.2. Phylogenetic analysis .which is based on cladistics among 9 genera in Clytini by software Hennig86.This paper discusses homogeneous characters for morphology and genitalia cladistic analysis among gemera and the cause of non-homogeneous characters from evolutional point of view. Similarly, phylogenetic analysis is carried out among 15 species in Chlorophorus , moreover,...